Unit 1 Science Review

Which two physical properties do sand, salt, and iron filings have in common that allow them to be classified together?

Javier fills a container with 100 ml of water. He uses a digital scale to measure the mass of the beaker and the water. The mass of the beaker and water is 220 grams. He then adds 30 grams of sugar to the water, and mixes it together to form a solution.  Using the same digital scale, what would be the mass of the beaker with the solution he made?

Which results will the student most likely observe after the mixture has been stirred for 15 seconds?

Select TWO correct answers.

Which of the tested substances is soluble in water?

Based on the data collected, which material is the best insulator over the 18 minutes?

Based on Julie’s observations, how can she best illustrate the particles that make up her substance?

Michael is working on a project. He collects 200 grams of sand and 20 milliliters of water. What will Michael observe when he mixes the sand and the water together?

What is the best tool to separate iron fillings and rice.

What is the best tool to separate rocks and sand.

What is the best tool to separate pepper and water.

What is the best tool to separate sugar and water

Which of the following properties would you consider MOST important when choosing a material to insulate electrical wires?